/* 
 * All content copyright Terracotta, Inc., unless otherwise indicated. All rights reserved. 
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not 
 * use this file except in compliance with the License. You may obtain a copy 
 * of the License at 
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0 
 *   
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 
 * License for the specific language governing permissions and limitations 
 * under the License.
 * 
 */

package org.quartz.examples.example9;

import static org.quartz.JobBuilder.newJob;
import static org.quartz.SimpleScheduleBuilder.simpleSchedule;
import static org.quartz.TriggerBuilder.newTrigger;

import org.quartz.JobDetail;
import org.quartz.JobKey;
import org.quartz.JobListener;
import org.quartz.Matcher;
import org.quartz.Scheduler;
import org.quartz.SchedulerFactory;
import org.quartz.SchedulerMetaData;
import org.quartz.Trigger;
import org.quartz.impl.StdSchedulerFactory;
import org.quartz.impl.matchers.KeyMatcher;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Demonstrates the behavior of <code>JobListener</code>s. In particular, this
 * example will use a job listener to trigger another job after one job
 * succesfully executes.
 * 
 * 
 * 这个例子是，第一个作业成功执行后，触发第二个作业。
 */
public class ListenerExample {

	public void run() throws Exception {
		Logger log = LoggerFactory.getLogger(ListenerExample.class);

		log.info("------- Initializing ----------------------");

		// First we must get a reference to a scheduler
		SchedulerFactory sf = new StdSchedulerFactory();
		Scheduler sched = sf.getScheduler();

		log.info("------- Initialization Complete -----------");

		log.info("------- Scheduling Jobs -------------------");

		// schedule a job to run immediately

		JobDetail job = newJob(SimpleJob1.class).withIdentity("job1").build();

		Trigger trigger = newTrigger().withIdentity("trigger1")
				.withSchedule(simpleSchedule().withIntervalInSeconds(2).withRepeatCount(1)).startNow().build();

		// Set up the listener
		JobListener listener = new Job1Listener();
		Matcher<JobKey> matcher = KeyMatcher.keyEquals(job.getKey());
		sched.getListenerManager().addJobListener(listener, matcher);

		// schedule the job to run
		sched.scheduleJob(job, trigger);

		// All of the jobs have been added to the scheduler, but none of the jobs
		// will run until the scheduler has been started
		log.info("------- Starting Scheduler ----------------");
		sched.start();

		// wait 30 seconds:
		// note: nothing will run
		log.info("------- Waiting 30 seconds... --------------");
		try {
			// wait 30 seconds to show jobs
			Thread.sleep(30L * 1000L);
			// executing...
		} catch (Exception e) {
			//
		}

		// shut down the scheduler
		log.info("------- Shutting Down ---------------------");
		sched.shutdown(true);
		log.info("------- Shutdown Complete -----------------");

		SchedulerMetaData metaData = sched.getMetaData();
		log.info("Executed " + metaData.getNumberOfJobsExecuted() + " jobs.");

	}

	public static void main(String[] args) throws Exception {

		ListenerExample example = new ListenerExample();
		example.run();
	}

}
